Boots CS-1000 Bedienungsanleitung PDF herunterladen (Seite 225)

100

101

Notes

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Virtual Trunks are used to carry VoIP

calls between systems without the need

for conventional circuits just using IP

networks.

This diagram shows the basic flow for a

Virtual Trunk IP to IP call. Set 1000 is

calling set 2000.

Set 1000 signals the call server via TPS

on the Sig Server

Call server identifies 2000 as a remote

set and sends the call to the Virtual

trunk gateway (SIP or H.323) on Sig

Server.

Sig server sends request to NRS

(Network Routing Service) or Session

Manager in and Aura installation, to

identify where 2000 is.

NRS responds with the IP address of

the destination Signalling gateway.

The Signalling gateway on the initiating

system then contacts the Signalling

gateway on the destination system.

Request is sent to the CS on destination

as an inbound D-Channel.

CS looks up set 2000 and then sends a

call setup to it via the TPS on its

Signalling server.

CS 1000 Rel 7.5 08092801

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